Steam Titan Quest Gold | PC | £1.49/$3.74/€2.49 - Daily Deal
RAGE | PC | £6.49/$9.99/€9.99 - Daily Deal
Quakecon Bundle | PC | £69.99/$99.99/€99.99 - includes more games than the rest of the list by far.
If I've missed either a new release or a great cheap deal, please comment and make that information known.
You may have seen some of these deals on a similar post over at Nukezilla, that's just me spreading the love